include/net/irda/irmod.h

   1 /*********************************************************************
   2  *
   3  * Filename:      irmod.h
   4  * Version:       0.3
   5  * Description:   IrDA module and utilities functions
   6  * Status:        Experimental.
   7  * Author:        Dag Brattli <dagb@cs.uit.no>
   8  * Created at:    Mon Dec 15 13:58:52 1997
   9  * Modified at:   Tue Mar 16 22:27:41 1999
  10  * Modified by:   Dag Brattli <dagb@cs.uit.no>
  11  *
  12  *     Copyright (c) 1998 Dag Brattli, All Rights Reserved.
  13  *
  14  *     This program is free software; you can redistribute it and/or
  15  *     modify it under the terms of the GNU General Public License as
  16  *     published by the Free Software Foundation; either version 2 of
  17  *     the License, or (at your option) any later version.
  18  *
  19  *     Neither Dag Brattli nor University of Tromsø admit liability nor
  20  *     provide warranty for any of this software. This material is
  21  *     provided "AS-IS" and at no charg.
  22  *
  23  ********************************************************************/
  24
  25 #ifndef IRMOD_H
  26 #define IRMOD_H
  27
  28 #include <linux/skbuff.h>
  29 #include <linux/miscdevice.h>
  30
  31 #include <net/irda/irqueue.h>
  32
  33 #define IRMGR_IOC_MAGIC 'm'
  34 #define IRMGR_IOCTNPC     _IO(IRMGR_IOC_MAGIC, 1)
  35 #define IRMGR_IOC_MAXNR   1
  36
  37 /*
  38  *  Events that we pass to the user space manager
  39  */
  40 typedef enum {
  41         EVENT_DEVICE_DISCOVERED = 0,
  42         EVENT_REQUEST_MODULE,
  43         EVENT_IRLAN_START,
  44         EVENT_IRLAN_STOP,
  45         EVENT_IRLPT_START,
  46         EVENT_IRLPT_STOP,
  47         EVENT_IROBEX_START,
  48         EVENT_IROBEX_STOP,
  49         EVENT_IRDA_STOP,
  50         EVENT_NEED_PROCESS_CONTEXT,
  51 } IRMGR_EVENT;
  52
  53 /*
  54  *  Event information passed to the IrManager daemon process
  55  */
  56 struct irmanager_event {
  57         IRMGR_EVENT event;
  58         char devname[10];
  59         char info[32];
  60         int service;
  61         __u32 saddr;
  62         __u32 daddr;
  63 };
  64
  65 typedef void (*TODO_CALLBACK)( void *self, __u32 param);
  66
  67 /*
  68  *  Same as irmanager_event but this one can be queued and inclueds some
  69  *  addtional information
  70  */
  71 struct irda_event {
  72         QUEUE q; /* Must be first */
  73
  74         struct irmanager_event event;
  75 };
  76
  77 /*
  78  *  Funtions with needs to be called with a process context
  79  */
  80 struct irda_todo {
  81         QUEUE q; /* Must be first */
  82
  83         void *self;
  84         TODO_CALLBACK callback;
  85         __u32 param;
  86 };
  87
  88 /*
  89  *  Main structure for the IrDA device (not much here :-)
  90  */
  91 struct irda_cb {
  92         struct miscdevice dev;
  93         struct wait_queue *wait_queue;
  94
  95         int in_use;
  96
  97         QUEUE *event_queue; /* Events queued for the irmanager */
  98         QUEUE *todo_queue;  /* Todo list */
  99 };
 100
 101 int irmod_init_module(void);
 102 void irmod_cleanup_module(void);
 103
 104 inline int irda_lock(int *lock);
 105 inline int irda_unlock(int *lock);
 106
 107 void irda_notify_init(struct notify_t *notify);
 108
 109 void irda_execute_as_process(void *self, TODO_CALLBACK callback, __u32 param);
 110 void irmanager_notify(struct irmanager_event *event);
 111
 112 extern void irda_proc_modcount(struct inode *, int);
 113 void irda_mod_inc_use_count(void);
 114 void irda_mod_dec_use_count(void);
 115
 116 #endif /* IRMOD_H */
 117
 118
 119
 120
 121
 122
 123
 124
 125